Infusion tubing set



FIG. 1 is a side elevational view of an infusion tubing set showing my new design;

FIG. 2 is an enlarged upper perspective view thereof, with the upper cannula shown in a rotated position and the tubing shown broken in the center for ease of illustration;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for an infusion tubing set, as shown and described. 